make core a static and add a default scene to it

1 files changed, 56 insertions, 0 deletions

diff --git a/src/scene.c b/src/scene.c
new file mode 100644
index 0000000..d9fea05
--- /dev/null
+++ b/src/scene.c
@@ -0,0 +1,56 @@
+#include "scene.h"
+#include "core.h"
+#include "log.h"
+#include "maths.h"
+#include "render_types.h"
+
+extern core g_core;
+
+void scene_init(scene *s) {
+  memset(s, 0, sizeof(scene));
+  s->renderables = render_entity_darray_new(10);
+  // default camera position - moved slightly along Z axis looking at 0,0,0
+  vec3 cam_pos = vec3_create(0, 0, -5);
+  s->camera = camera_create(cam_pos, vec3_negate(cam_pos), VEC3_Y, deg_to_rad(45.0));
+}
+void scene_free(scene *s) { render_entity_darray_free(s->renderables); }
+
+void scene_set_dir_light(directional_light light) { g_core.default_scene.dir_light = light; }
+void scene_add_point_light(point_light light) {
+  scene s = g_core.default_scene;
+  if (s.point_lights_count == 4) {
+    WARN("Already 4 point lights, we can't add more.");
+  } else {
+    s.point_lights[s.point_lights_count] = light;
+    s.point_lights_count++;
+  }
+}
+void scene_add_model(model_handle model, transform3d transform) {
+  render_entity renderable = { .model = model, .tf = transform };
+  render_entity_darray_push(g_core.default_scene.renderables, renderable);
+}
+
+bool scene_remove_model(model_handle model) {
+  scene s = g_core.default_scene;
+  for (u32 i = 0; i <= s.renderables->len; i++) {
+    if (s.renderables->data[i].model.raw == model.raw) {
+      // TODO: add remove function to darray
+    }
+  }
+  return true;
+}
+
+void scene_set_model_transform(model_handle model, transform3d new_transform) {
+  scene s = g_core.default_scene;
+  for (u32 i = 0; i <= s.renderables->len; i++) {
+    if (s.renderables->data[i].model.raw == model.raw) {
+      s.renderables->data[i].tf = new_transform;
+    }
+  }
+}
+
+void scene_set_camera(vec3 pos, vec3 front) {
+  scene s = g_core.default_scene;
+  s.camera.position = pos;
+  s.camera.front = front;
+}